astigmia的翻译，读音
英/æs'ti^miә/
释义：
n. [医]散光
n (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
n (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
n (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
n (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point